In order to investigate the effects of rotating shift work on the subjective characteristics of sleep and mental depression questionnaire survey was carried out on 405 shift workers and 153 nonshift workers who were nurses employed. in three university hospital, The questionnaire forms used in this study were the self rating depression scale( SI)S) and circadian type questionnaire (CTQ) factor R ( rigidity/flexbility of sleeping habit) and factor V(inability/ability to overcome drowsiness).
The results were as follows
1. Mean score of CTQ R in shift workers was signifijantly lowor than that in nonshift workers, however. no significant difference in CTQ V was observed between two groups.
2. Mean score of SDS was significantly higher in shift workers(44. 1) than in nonshift workers(39.8).
3, Mean self rating depression scale scores of pervasive affect, physiologic equivalents and psychological equivalents were significantly higher in~hift workers than in nonshift workers.
4, In shift worker, mean SDS score was the highest in confusion and followed by diurnal variation, retardation, and indeciveness in the descending order. In nonshift worker, that S( ore was the highest in decreased libido and followed by con- fusion, and indeciveness in the descending order.
5. Circadian type questionnaire scores was significantly and negatively correlated with Solfrating depression scale scores ( r= 0.473).
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